Home / 8,947.07-13,416.43-3,320.82

Finding the Fourth Proportional to 8,947.07, 13,416.43 and 3,320.82

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Solution

The fourth proportional to 8,947.07, 13,416.43 and 3,320.82 is: 4,979.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,947.07 : 13,416.43 = 3,320.82 : x
  2. Step 2: Convert to fraction form
    8,947.07/13,416.43 = 3,320.82/x
  3. Step 3: Cross multiply
    8,947.07x = 13,416.43 × 3,320.82
  4. Step 4: Simplify right side
    8,947.07x = 44,553,481.99
  5. Step 5: Solve for x
    x = 44,553,481.99/8,947.07
  6. Step 6: Final answer
    x = 4,979.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.